package com.zzy.librarytest.service;


import com.zzy.librarytest.entity.User;

import java.util.List;

public interface UserService {
    Integer selectUser(String username , String password);

    List<User> selectAllUser();
    Integer insertUser(String username , String password);

    Integer deleteUser(String username);

    Integer updateUser(String username , String password);

    User selectOneUser(String username);

}
